Eraser device



y 6- R. s. HENDERSON I 2,046,743

ERASER DEVI CE Filed March 50, 1935 INVENTOR ATTORN EY Patented July 7,1936 PATENT OFFICE ERASER DEVICE Russell S. Henderson, Morristown, N.J., assignor to Weldon Roberts Rubber 00., Newark, N. J., a corporationof New Jersey Application March 30, 1935, Serial No. 13,802

4 Claims.

This; invention relates to improvements in erasers; and the inventionhas reference to a novel eraser device conveniently suited to the usesof typists, draftsmen, accountants and like 5 workers, as well as forgeneral use.

This invention has for its principal object to provide a novel eraserdevice whereby a plurality of bodies. of erasive material are joinedtogether in a unitary structure calculated to furnish a 10 comparativelylarge mass better adapted to be firmly grasped and held by the hand inuse, and yet. wherein each body may be independently moved so as toexpose the usable portions of its mass in position for use until suchusable por- 15 tions are entirely consumed.

The invention has for a further object to provide an eraser device ofthe kind referred to, in"v which the erasive bodies are of circular orapproximately circular form and are joined to- 20 gether by anintermediate sustaining plate or link cooperative with outer plates torotatably support and reenforce said bodies subject to exposure of allusable portions thereof in position for use and at the same time subjectto selective ;25 use thereof, especially when the same possess differenterasive characters.

Other objects of this invention, not at this time more particularlyenumerated, will be understood from the following detailed description30 of the same.

An illustrative embodiment of the invention is shown in the accompanyingdrawing, in which:--

Fig. 1 is a face view of an eraser device constructed in accordance withthe invention; Fig. 2

35 is an edge elevation of the same; Fig. 3 is an end elevation of thesame; Fig. 4 is a central longitudinal section through the same; andFig. 5 is a face or plan view of the sustaining plate or link per se ofthe eraser device.

40 Similar characters of reference are employed in the abovedescribedviews, to indicate corresponding parts.

In preferred form the novel eraser device, according to this invention,comprises at least two bodies of erasive material, viz. the body I andthe body I I. Each body is of disk-like form, and may be of any suitableperipheral shape, although preferably of circular or substantiallycircular shape. Each body is provided with a cen- 50 tral opening I2.The bodies I 0 and II are disposed flatwise in parallel planes, andpreferably so that adjacent marginal portions thereof are in mutuallyoverlapping relation. Interposed between said bodies II] and II, as thusdisposed, is 55 a sustaining or carrying plate I3 provided at itsrespective ends with disk-like end-portions I 4 and I5, each being of adiameter appreciably smaller than the diameters of the erasive bodies I0and I I, and each having a central opening I6. The plate I3 may be madeof any substantially rigid sheet material, but is preferably made ofsheet metal. Provided for application on the outer sides of therespective bodies I0 and II are outer reenforcing or keeper disks I Iand I8, which also may be made of any suitable substantially rigid sheetmaterial, but which are preferably made of sheet metal. The said outerdisks I1 and I8 correspond in diameter to the diameters of the disk-likeend-portions I4 and I5 of the carrying plate I3, being therefore ofdiameters appreciably smaller than the diameters of the erasive bodiesIt! and II upon which they are applied. Said outer disks I 1 and I8 eachhave a central opening I9.

In assembling the described elements of the novel eraser device, theerasive body I0 is centrally registered with and applied against thedisk-like end-portion I4 at one side of the carrying plate I3, and theouter disk I1 is then applied centrally over the outer face of saiderasive body III, all whereby the openings II, I6 and I9 of these partsare aligned together. To secure the parts in this assembled relation, asuitable central holding and pivoting eyelet or rivet 20 is passedthrough the aligned openings, and its opposite ends thereupon rivetedover, as at 2I, respectively against the end-portion I4 of the carryingplate I3 and the outer disk II. In like manner, the erasive body I I iscentrally registered with and applied against the disk-like endportionI5 at the opposite side of the carrying plate I3, and the outer disk I8is then applied centrally over the outer face of the erasive body II,all whereby the openings I2, I6 and IQ of these parts are alignedtogether. To secure these parts in such assembled relation, a suitablecentral holding and pivoting eyelet or rivet 22 is passed through saidaligned openings, and its opposite ends thereupon riveted over, as at23, respectively against the end-portion I5 of the carrying plate I3 andthe outer disk I8.

In the eraser device thus constructed, the erasive bodies I0 and II arepreferably disposed in somewhat overlapping relation, but each body iscapable of rotation about its pivoting eyelet or rivet so that all partsof its usable marginal portions may be moved to freely projectingposition at need until the entire usable mass of its erasive material isconsumed.

The erasive bodies I0 and II may, if desired, be

respectively composed of material of different erasive characters orqualities. For example, the body I B may comprise relatively hardabrasive material rendering the same usable for erasing ink marks, whilethe body ll may comprise relatively soft abrasive material suitable forpencil mark erasure.

Each erasive body is firmly supported by the interlinking carrying plateso as to provide an assembly constituting a unitary structure whichwhile being compact nevertheless furnishes, as a whole, a comparativelylarge mass well adapted to be firmly grasped by the fingers of the user,whereby the application of the part thereof desired to be utilized foran erasure operation is greatly facilitated, and all tendency toslipping, with risk of gouging or tearing the surface undergoing theerasure operation, is avoided.

From the above description it will be obvious that this inventionprovides a useful and convenient eraser device of neat and attractiveappearance wherein all the advantages of the flat disk-like form of thewell-known circular typewriter eraser is retained, with the addedadvantages of providing for a better grasp of the same by the user, and,if desired, the provision of different qualities of erasive materialconveniently arranged for selective use.

Having thus described this invention, I claim:

1. In an eraser device, a support for a plurality of substantiallycircular eraser bodies comprising a carrier plate of a length less thanthe combined diameters of said bodies if laid edge to edge, and meansadjacent to each end of said plate respectively projecting from oppositefaces thereof for securing said bodies respectively upon opposite sidesof said plate so that adjacent inner marginal portions of said bodiesare in overlapping relation and outer marginal portions thereof extendfreely beyond the extremities of said plate.

2. In an eraser device, a support for a plurality of substantiallycircular eraser bodies comprising a flat, relatively thin carrier plateof a length less than the combined diameters of said bodies if laid edgeto edge, said plate having centrally perforate approximatelysemi-circular end portions of a radius substantially less than that ofthe eraser bodies, retaining rivets carried by said perforate endportions, respectively projecting from opposite sides of said plate, onwhich the eraser bodies are mounted to lie respectively upon oppositesides of said plate so that adjacent inner marginal portions of saidbodies are in overlapping relation and outer marginal portions extendfreely beyond the peripheries of said plate end portions, and keeperdiscs secured by the outer ends of the said rivets in supportingrelation to the outer faces of the eraser bodies so mounted.

3. In an eraser device, a support for a plurality of circular eraserbodies comprising a carrier plate of a length less than the combineddiameters of said bodies if laid edge to edge and of a widthsubstantially less than the diameters of said bodies, and means adjacentto each end of said plate respectively projecting from opposite facesthereof for rotatably mounting said bodies respectively upon oppositesides of said plate in planes parallel thereto and so that adjacentinner marginal portions of said bodies are in overlapping relation andouter marginal portions thereof extend freely beyond the end portions ofsaid plate.

4. In an eraser device, a support for a plurality of circular eraserbodies comprising a carrier plate of a length less than the combineddiameters of said bodies if laid edge to edge and of a Widthsubstantially less than the diameters of said bodies, means adjacent toeach end of said plate respectively projecting from opposite facesthereof for rotatably mounting said bodies respectively upon oppositesides of said plate in planes parallel thereto and so that adjacentinner marginal portions of said bodies are in overlapping relation andouter marginal portions thereof extend freely beyond the end portions ofsaid plate, and keeper discs secured by the outer end portions of saidmounting means in bracing relation to the outwardly presented faces ofsaid eraser bodies.

RUSSELL S. HENDERSON.

